Singletree attachment.



UNITED STATES PATENT OFFICE.l

JAMES HAFER, SR., OF AUGUSTA, KENTUCKY.

` SINGLETREE ATTACHMENT.

SPECIFICATION forming part of Lettersl'Patent No. 694,545, dated March4, 19.02.

Application filed October l6, 1901. Serial No.78,845, .(No model.)

tree Attachment, (Case 13,) of which the folr lowing is a specification.

This invention relates to singletree attachments.

The object is to provide a simply-constructed and thoroughly-efficientform ofjantirattling singletree attachment which may be readily appliedto position without necessitating any change in the structuralarrangement of the singletree or of the cross-bar of the shafts otherthan what can be readily accomplished by an ordinary wheelwright andwhich in use will be thoroughly effective in preventing any rattling,even though the-nut holding the assembling-bolt of the singletree andthe cross-bar works loose. A

With these and other objects in View, as will appear as the nature ofthe invention is better understood, the same 'consists in the novelconstruction and combination of parts of a singletree attachment, aswill be hereinafter fully described and claimed. f-

In the accompanying drawings, forming a part of this specilication, andin which like numerals indicate corresponding parts, there' isillustrated a form of embodiment of this invention capable of carryingthe same into practical operation, it being understood that the elementstherein exhibited may be varied or changed as to shape, proportion, andexact manner of assemblage without departing from the scope of theinvention, and in these drawingsv Figure 1 is a view in sectionalelevation showing the attachment applied tothe singletree and thecross-bar of a pair of shafts. Fig. 2\is a view in transverse section.Fig. 3 is a detached detail perspective view of the supporting-plate forthe antirattling springs.

Referring to the drawings, l vdesignates an ordinary singletree, 2 ashaft cross-bar, and 3 and 4 wear-plates carried, respectively, by theunder side of the singletree and the upper side of the cross-bar andoperating in the usual manner to hold `these parts spaced at the properdistance apart. 'As the elements above enumerated may be of the usual orany preferred construction, further description is deemed unnecessary.

Passing throughthe singletree and the crossbar isa bolt 5, having acurved head 6 to embrace the singletree, as usual, the lower end of thebolt being projected below the cross- 'bar and passed through an orifice'7 of the antirattling spring-supporting plate S, a nut 9 screwed on theprojecting end of the bolt serving to clamp the plate against the underside of the cross-bar. The upper face of the plate is provided with atubular extension 10, through Ywhich, passes the orice 7 the extensionto be seated in a recess in the under in shown, the studs are carried byplates 14, Y

suitably secured to the plate 8, as by being lb'razed or rivetedthereto, and the wells are formed by boring openings in the plate-8;-but it is to be understood that,` if preferred, the structure exhibitedin Fig. 3 may be cast or otherwise formed with all of the partsintegral, and as this will be obvious and well understood detailedillustration is not thought to be necessary. The under side of thecrossbar is provided with four orifices 15,into which .project the studsand the springs, the springs being of greater length than the studs inorder to bear against the upper walls of the orifices, and thus exert aconstant downward pressure on the plate, which latter by bearing uponthe nut 9 will cause the singletree Aand cross-bar, or rather theirwear-plates, to be kept in close contact,whereby rattling ,will bepositively obviated. By reasonof the pressure exerted by the springsland. by making these longer than the studs ll rattling will be preventedeven though the nut 9 work loose on the bolt to such an extent as toallow the plate 8 to drop some distance below the cross-bar but it willbe found in prac- Ioo tice that the nut S will be prevented from workingloose by the aforesaid pressure, by which it will be seen that the plateand its coacting springs constitutes, in effect, a nutlock for the nut9.

It will be seen from the foregoing description that to adapt thisantirattler to the cross-barof a buggy already in use it will only benecessary to enlarge the bolt-opening of the cross-bar for the receptionl0 and provide orifices for the reception of the springs and studs.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

l. The combination with a singletree and a cross-bar, or a boltprojecting through the parts, the cross-bar being provided on its underside with a plurality of orices, a plate bearing springs to engage theorifices, and a nut on the bolt to hold the plate associated with thecross-bar.

2. The combination with a singletree and a cross-bar, of a boltprojecting through the parts, the under side of the cross-bar beingprovided with a recess surrounding the bolt and with a plurality oforifices, a plate bearing a plurality of studs having coiled springsmounted thereon, and aV centrally-disposed tubular extension, theextension to engage the said recess and the studs and springs to engagethe orifices, and anut on the bolt for clamping the plate against thecross-bar.

In testimony that I claim the foregoing as my own I have hereto aiiixedmy signature in the presence of two Witnesses.

JAMES IIAFER, SR.

Witnesses:

FRANK CLENNY, C. BARTLETT.

